64541 has 4 divisors (see below), whose sum is σ = 65052. Its totient is φ = 64032.

The previous prime is 64513. The next prime is 64553. The reversal of 64541 is 14546.

It is a happy number.

64541 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12100 + 52441 = 110^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 64541 - 2¹⁴ = 48157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 371.

It is an arithmetic number, because the mean of its divisors is an integer number (16263).

2⁶⁴⁵⁴¹ is an apocalyptic number.

It is an amenable number.

64541 is a deficient number, since it is larger than the sum of its proper divisors (511).

64541 is a wasteful number, since it uses less digits than its factorization.

64541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510.

The product of its digits is 480, while the sum is 20.

The square root of 64541 is about 254.0492078319. The cubic root of 64541 is about 40.1123922372.

It can be divided in two parts, 645 and 41, that added together give a palindrome (686).

The spelling of 64541 in words is "sixty-four thousand, five hundred forty-one".